Developer Experience
Code Review Cycle Time Calculator
Enter median time-to-first-review and time-from-review-to-merge to compute total review cycle time, DORA tier, and reviewer load.
Calculations run locally in your browserTool
Example — Representative default scenario — pickup hours 10 · review hours 14 · rework hours 8.
Total cycle time
30h
open → first review → merge
DORA lead time tier
High (<3d)
code review component
PR queue pressure
3.1 PRs/dev/wk
review load
First review wait
18h
biggest opportunity: target <4h
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Uptime, incident, and on-call management. Better Stack provides status pages, incident management, and on-call scheduling for engineering teams.
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About this tool
Code Review Cycle Time Calculator
The Code Review Cycle Time Calculator computes total cycle time, DORA tier classification, and reviewer load from PR open-to-merge timing data.
• Measure code review cycle time for a DORA lead time calculation
• Assess whether current review throughput keeps up with PR volume
• Identify whether wait time or revision time dominates review cycle
• Set a 24-hour first-review SLA based on current reviewer load
FAQ
What does this tool tell you?
The Code Review Cycle Time Calculator computes total cycle time, DORA tier classification, and reviewer load from PR open-to-merge timing data.
What affects the result most?
Review cycle time: time from PR open to merge — DORA lead time component. P75 target: Elite teams <1 day, High teams <1 week — DORA benchmarks. Review wait time: if reviewer has >10 open review requests, review queue blocks flow.
How should I use the result?
The calculation is deterministic — the same inputs always produce the same output — so the most useful workflow is to vary one input at a time and see which factor moves the result most. That tells you where to focus your attention before committing to a decision.